MIDI to anything

[J. Larry Hendry]

Thanks Eric.  I was totally confused here.  Your explanation below is
crystal clear.  Thanks for helping me out of the dark.
Larry



> ???? huh? The 7-35v spec is for the POWER SUPPLY
> of the MTP-1. It HAS to be in that range.
> The parallel outputs are RELAY DRIVERS. Open collector.
> That means that a key-down causes the corresponding 
> relay output to be connected to ground.
--------------> 
> YOU DO NOT NEED RELAYS TO MAKE A VOLTAGE DIVIDER.
> for this thing.
> Just string an array of resistors or pots in series. Then connect
> +v to one end, ground to the other. Then connect the MTP-1s
> first relay output to the junction of the SECOND and THIRD
> resistors. Connect your CV output to the junction of the FIRST
> and SECOND resistors. 
> 
> When the first relay output goes to ground, the voltage divider formed
> will give the MINIMUM voltage of the divider. The second relay
> output will divide to the SECOND LOWEST CV. And so on.
> The resistor values can be adjusted to give the CV scaling desired.
> 
> This will work even with two or more dividers. The only connection
> of the MTP-1 to the dividers is a ground and a relay output that
> grounds. So multiple dividers can be connected to the relay outputs
> at once, they will work INDEPENDENTLY of each other (so long as only
> one relay output is grounded).
> 
> Eric Barbour
> Svetlana Electron Devices
> Portola Valley CA USA
>